Untargeted metabolomics and quantification analysis reveal the shift of chemical constituents between instant dark teas individually liquid-state fermented by , and .

Instant dark teas (IDTs) were individually liquid-state fermented using the fungi , and . To understand how the chemical constituents of IDTs were affected by the fungi, samples were collected and measured by liquid chromatography-tandem mass-tandem mass spectrometry (LC-MS/MS). Untargeted metabolomics analysis revealed that 1,380 chemical constituents were identified in positive and negative ion modes, and 858 kinds of chemical components were differential metabolites.

Dynamic changes in the diversity and function of bacterial community during black tea processing.

Among all types of tea, black tea is produced in the largest amount worldwide, and its consumption is still increasing. Enzymatic fermentation is considered majorly contribute to quality formation of black tea, and the information about the roles of bacterial community in black tea processing is scarce. This study aimed to analyze the dynamic changes in composition, structure, and function of microbial communities during black tea processing and reveal the roles of bacterial community in black tea processing.

[Clinical characteristics and genetic analysis of rare chromosome aberration in peripheral blood].

Objective: To investigate the main clinical characteristics and genetic analysis of rare chromosome aberration in peripheral blood.

Methods: Peripheral blood cells were cultured for 72 hours with routine method and slids performed, and then the slide was read and mode analysis was carried out. The diagnostic standard of rare chromosomal aberation was: 1-2 abnormal kary types were found in every 30, 60, 200 mitotic phass.